From: Dmitry Antipov Date: Fri, 17 May 2024 15:33:31 +0000 (+0300) Subject: wifi: cfg80211: use __counted_by where appropriate X-Git-Tag: io_uring-6.11-20240722~71^2~223^2~33 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=aa4ec06c455d;p=linux-block.git wifi: cfg80211: use __counted_by where appropriate Annotate 'sub_specs' of 'struct cfg80211_sar_specs', 'channels' of 'struct cfg80211_sched_scan_request', 'channels' of 'struct cfg80211_wowlan_nd_match', and 'matches' of 'struct cfg80211_wowlan_nd_info' with '__counted_by' attribute. Briefly tested with clang 18.1.1 and CONFIG_UBSAN_BOUNDS running iwlwifi. Signed-off-by: Dmitry Antipov Link: https://msgid.link/20240517153332.18271-1-dmantipov@yandex.ru Signed-off-by: Johannes Berg --- diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index cbf1664dc569..d79180bec7a1 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -2200,7 +2200,7 @@ struct cfg80211_sar_sub_specs { struct cfg80211_sar_specs { enum nl80211_sar_type type; u32 num_sub_specs; - struct cfg80211_sar_sub_specs sub_specs[]; + struct cfg80211_sar_sub_specs sub_specs[] __counted_by(num_sub_specs); }; @@ -2838,7 +2838,7 @@ struct cfg80211_sched_scan_request { struct list_head list; /* keep last */ - struct ieee80211_channel *channels[]; + struct ieee80211_channel *channels[] __counted_by(n_channels); }; /** @@ -3582,7 +3582,7 @@ struct cfg80211_coalesce { struct cfg80211_wowlan_nd_match { struct cfg80211_ssid ssid; int n_channels; - u32 channels[]; + u32 channels[] __counted_by(n_channels); }; /** @@ -3596,7 +3596,7 @@ struct cfg80211_wowlan_nd_match { */ struct cfg80211_wowlan_nd_info { int n_matches; - struct cfg80211_wowlan_nd_match *matches[]; + struct cfg80211_wowlan_nd_match *matches[] __counted_by(n_matches); }; /**